These warnings are false positives when testing in the CI
when a documentation module containing the base type is meant
to be loaded as a dependency; In the CI, the .index files for
doc dependencies are not available so we see this warning.
Ignore these warnings for now in the global documentation config.
Pick-to: 6.8
Change-Id: Ic1711bf7389e9f9d4a04e3b72b2c9f8b25539357
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
(cherry picked from commit 3336422289079b421797ac2d194241976929c7d8)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>